The action of playing with Astrojaxs. Astrojaxs are often referred to as AJs, so Attached Juggling is an anagram and can also be shortened to AJ.
A term to describe toys similar to Astrojaxs. This includes brand name toys like monkey knuckles (two free moving balls on a string with stoppers at the end) and home maid astrojaxs.
"I like to go to the park and do some Attached Juggling in the fresh air."
"Look at this new Attached Juggling toy I made! Its four wooden blocks on a string. Its no Astrojax but I think its pretty cool"